Information about hypothesis-five step method z test

Assignment Help Basic Statistics

Reference no: EM13111261

For the following independent random samples, use the z-test and the 0.01 level of significance in testing Ho:u1 = u2 versus H1:u1 = u2.

x1 = 33.5 s1 = 6.4 n1 = 31

x2 = 27.6 s2 = 2.7 n2 = 30

2. The manager's assistant, who created a new brochure, randomly selects 400 current customers, then randomly chooses 200 to receive the standard brochure that has been used in the past, with the other 200 receiving the promising new brochure that he has developed. Of those receiving the standard brochure, 35% call for more information about the counseling session, while 42% of those receiving the new brochure call for more information. Using the 0.10 level of significance, is it possible that the superior performance of the new brochure was just due to chance and that the new brochure might really be no better than the old one?

Reference no: EM13111261

Questions Cloud

Give the p-value for the hypothesis test : For testing the null hypothesis at the 4% level of significance that mu GE 100 vs the alternative that mu

Discuss how managing can facilitate teamwork and innovate : Discuss how managing can facilitate teamwork and innovate approaches to organization problem solving. Discuss an experience in which you lead a team or were part of a team solving a problem or making a change

Explain the mode of inheritance of egg color : One homozygous strain of silkworm lays white eggs, and another lays black eggs. The F1 offspring of a cross of white and black egg laying silkworms are all found to lay white eggs. Among the F2 progeny, 50 silkworms were found to lay white eggs, 1..

Illustrate what might you do in a similar situation : Illustrate what might you do in a similar situation? Illustrate what laws your state (Louisiana) has regarding partner notification for HIV, AIDS and other sexually transmitted infections?

Information about hypothesis-five step method z test : For the following independent random samples, use the z-test and the 0.01 level of significance in testing Ho:u1 = u2 versus H1:u1 = u2.

Recognise the critical issues in the scenario : Read the You Decide scenario as well as decide on a response. Your goal is to recognise the critical issues in the scenario as well as determine how you would resolve

What proportion of the pollen would carry the lethal gene : In some genetically engineered corn plants the dominant gene (D) produces a protein that is lethal to certain insect pests that eat the corn plants. It was found that the pollen could also kill the insect pests. If a corn plant is heterozygous for..

Illustrate what is the current share price for the stock : Investors require a 16 percent return on the stock for the first three years a 14 percent return for the next three years and then an 11 percent return thereafter. Illustrate what is the current share price for the stock?

Create 90 percent of the mean confidence interval : You work for a consumer advocate agency and want to find the mean repair cost of a washing machine. As part of your study, you randomly select 45 repair costs and find the mean to be $115.

User Account

All Pages